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Math · Calculator

Ratio Calculator

Simplify ratios and create equivalent ratios from two-part values.

Simplified ratio

2:3

GCD used

6

Equivalent ratio

8:12

Results are deterministic client-side calculations. Review assumptions and units before using a result in school, business, construction, or technical work.

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How to use this calculator

Simplify ratios and create equivalent ratios from two-part values.

How the calculation works

  • Enter ratio values A and B.
  • The GCD reduces both parts.
  • Enter a scale factor to generate an equivalent ratio.

Formula

12:18 divided by GCD 6 becomes 2:3.

Example

A 2:3 ratio scaled by 4 becomes 8:12.

Understanding your result

Use the output as a practical starting point, then review it before using it in an important workflow.

Assumptions and limitations

  • The V1 ratio tool focuses on two-part ratios.
  • Use Proportion Calculator for missing-value equations.

Frequently asked questions

Does this require an account?

No. The core tool works without creating a Tool2Do account.

Is my input included in share links or analytics?

No. Tool2Do share actions use the tool page URL and safe metadata, not private values or uploaded files.

Ratio Calculator - Simplify and Scale Ratios | Tool2Do